Ray generating device and control method thereof

A ray generating device, comprising:

• an electronic beam generating device, configured to generate a plurality of electronic beams;
• a microwave generating device, configured to generate a microwave;
• a microwave circulator, having a power input port and at least two power output ports, the power input port being connected to the microwave generating device through a waveguide structure;
• a plurality of accelerating tubes, connected to the electronic beam generating device and respectively connected to the at least two power output ports, configured to receive a plurality of electronic beams generated by the electronic beam generating device, respectively, and accelerate the plurality of electronic beams respectively through microwaves received from the at least two power output ports, so as to generate a plurality of rays having different energies, respectively;
• and
• a controller, in signal connection with the electronic beam generating device and the microwave generating device, configured to perform chronological control on microwave power of the microwave generating device, and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device and respectively corresponding to the plurality of accelerating tubes.